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What is the Least Common Multiple of 39846 and 39865?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 39846 and 39865 is 1588460790.

LCM(39846,39865) = 1588460790

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Least Common Multiple of 39846 and 39865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39846 and 39865, than apply into the LCM equation.

GCF(39846,39865) = 1
LCM(39846,39865) = ( 39846 × 39865) / 1
LCM(39846,39865) = 1588460790 / 1
LCM(39846,39865) = 1588460790

Least Common Multiple (LCM) of 39846 and 39865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39846 and 39865. First we will calculate the prime factors of 39846 and 39865.

Prime Factorization of 39846

Prime factors of 39846 are 2, 3, 29, 229. Prime factorization of 39846 in exponential form is:

39846 = 21 × 31 × 291 × 2291

Prime Factorization of 39865

Prime factors of 39865 are 5, 7, 17, 67. Prime factorization of 39865 in exponential form is:

39865 = 51 × 71 × 171 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 39846 and 39865.

LCM(39846,39865) = 21 × 31 × 291 × 2291 × 51 × 71 × 171 × 671
LCM(39846,39865) = 1588460790